A surfeit of euphemisms: this "Courtesy Bag" is "for
your needs away from home".

It's only when you flip it over that you realize
what it's really for: "Please use this bag for disposal", it says. "A
bio-degradable recyclable paper product".

So it's to dispose of some kind of waste... and at 7.6 x 18.2 cm, it's
not big enough to be a barfbag or to hold maxi-pads. Ergo, it must be
a sanibag, designed specifically for tampons or smaller sanitary napkins.